Examples of org.apache.commons.math3.util.OpenIntToDoubleHashMap.Iterator.key()

Package org.apache.commons.math3.util.OpenIntToDoubleHashMap

Class org.apache.commons.math3.util.OpenIntToDoubleHashMap.Iterator

Examples of org.apache.commons.math3.util.OpenIntToDoubleHashMap.Iterator.key()

org.apache.commons.math3.util.OpenIntToDoubleHashMap.Iterator.key()
Get the key of current entry. @return key of current entry @exception ConcurrentModificationException if the map is modified during iteration @exception NoSuchElementException if there is no element left in the map

    public OpenMapRealVector append(OpenMapRealVector v) {
        OpenMapRealVector res = new OpenMapRealVector(this, v.getDimension());
        Iterator iter = v.entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            res.setEntry(iter.key() + virtualSize, iter.value());
        }
        return res;
    }


    /** {@inheritDoc} */

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        Iterator iter = thisIsSmaller  ? entries.iterator() : v.entries.iterator();
        OpenIntToDoubleHashMap larger = thisIsSmaller  ? v.entries : entries;
        double d = 0;
        while(iter.hasNext()) {
            iter.advance();
            d += iter.value() * larger.get(iter.key());
        }
        return d;
    }


    /** {@inheritDoc} */

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        checkVectorDimensions(v.getDimension());
        OpenMapRealVector res = new OpenMapRealVector(this);
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            res.setEntry(iter.key(), iter.value() / v.getEntry(iter.key()));
        }
        return res;
    }


    /** {@inheritDoc} */

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        checkVectorDimensions(v.getDimension());
        OpenMapRealVector res = new OpenMapRealVector(this);
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            res.setEntry(iter.key(), iter.value() / v.getEntry(iter.key()));
        }
        return res;
    }


    /** {@inheritDoc} */

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        checkVectorDimensions(v.getDimension());
        OpenMapRealVector res = new OpenMapRealVector(this);
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            res.setEntry(iter.key(), iter.value() * v.getEntry(iter.key()));
        }
        return res;
    }


    /** {@inheritDoc} */

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        checkVectorDimensions(v.getDimension());
        OpenMapRealVector res = new OpenMapRealVector(this);
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            res.setEntry(iter.key(), iter.value() * v.getEntry(iter.key()));
        }
        return res;
    }


    /** {@inheritDoc} */

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        OpenMapRealVector res = new OpenMapRealVector(n);
        int end = index + n;
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            if (key >= index && key < end) {
                res.setEntry(key - index, iter.value());
            }
        }
        return res;

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    public double getDistance(OpenMapRealVector v) {
        Iterator iter = entries.iterator();
        double res = 0;
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            double delta;
            delta = iter.value() - v.getEntry(key);
            res += delta * delta;
        }
        iter = v.getEntries().iterator();

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            res += delta * delta;
        }
        iter = v.getEntries().iterator();
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            if (!entries.containsKey(key)) {
                final double value = iter.value();
                res += value * value;
            }
        }

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    public double getL1Distance(OpenMapRealVector v) {
        double max = 0;
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            double delta = FastMath.abs(iter.value() - v.getEntry(iter.key()));
            max += delta;
        }
        iter = v.getEntries().iterator();
        while (iter.hasNext()) {
            iter.advance();

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